/**
 * Copyright 2011 Joao Miguel Pereira
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package main.java.eu.jpereira.trainings.designpatterns.structural.decorator;

import java.util.ArrayList;
import java.util.List;

import main.java.eu.jpereira.trainings.designpatterns.structural.decorator.channel.SocialChannel;

/**
 * @author jpereira
 * 
 */
public class SocialPublisher {

    private List<SocialChannel> channels;

    public SocialPublisher() {
            this.channels = createSocialChannelList();
    }

    /**
     * @param textMessage
     */
    public void publish(String textMessage) {
            //For each channels, deliver the message
            for (SocialChannel channel : this.channels ) {
                    channel.deliverMessage(textMessage);
            }

    }

    /**
     * @return
     */
    public int getSocialChannelsCount() {
            return this.channels.size();
    }

    /**
     * @param channel
     */
    public void addSocialChannel(SocialChannel channel) {
            this.channels.add(channel);
    }

    /**
     * Factory method
     * 
     * @return
     */
    protected List<SocialChannel> createSocialChannelList() {

            return new ArrayList<SocialChannel>();
    }

    /**
     * @param channel
     * @return
     */
    public boolean removeChannel(SocialChannel channel) {
            boolean removed = false;
            if (this.channels.contains(channel)) {
                    this.channels.remove(channel);
                    removed = true;
            }
            return removed;
    }
}